Mainframe Architect

TechDigital Group; Foster City (CA); On-site; USD 100,000 - 130,000; Full time

Job summary

TechDigital Group is looking for a talented IT professional to manage and upgrade z/OS systems. The successful candidate will have extensive knowledge of System z architecture and be responsible for incident management, system performance monitoring, and support for major OS upgrades.

Your role will also include working with IBM and ISV products while ensuring the performance and availability meets client needs. If you have a background in z/OS and enjoy a dynamic working environment, we want to hear from you!

Qualifications

• Extensive knowledge of z/OS architecture and upgrades.
• Experience with system performance monitoring and tuning.
• Ability to troubleshoot and resolve incidents on z/OS.

Responsibilities

• Manage incident and problem resolution for z/OS systems.
• Support maintenance releases and major OS upgrades.
• Monitor and tune system performance to meet operational objectives.

Skills

System z architecture

z/OS version upgrades

JES2/JES3 migration

Mainframe LPAR and OS Upgrades

IBM system utilities

Network configuration

Performance tuning

IBM z/OS Upgrade

Access management

Tools

z/OS Performance Monitor

Real TCP/IP stack

REXX

Job description

Job Description

• Excellent understanding of System z architecture
• Excellent experience with z/OS version upgrades (Advantage if experience 3.2 upgrade or above)
• JES2/JES3 migration experience
• Experience in building Mainframe LPAR and OS Upgrades
• Knowledge Catalog management, IBM system utilities
• Knowledge on VTAM, TCPIP, ACF2 and GDPS
• Installation of patches and fixes
• Installation and maintenance of ISV products, REXX, RMF, SMF
• Installation and customization of z/OS and related IBM or other ISV software;
• Extensive experience with providing performance and tuning using monitoring tools (f. ex. z/OS Performance Monitor or other tools);
• DIRMAINT administration – RACF/Top secret/ACF2 administration;
• REXX knowledge - SSI knowledge;
• Ability to support network configuration and maintenance (Real TCP/IP stack, VSWITCH, TCPIP tools in z/OS, etc.);
• Solid skills in z/Linux system cloning and configuration including memory and file system allocation;
• System parameters/parmlib maintenance
• Managing incidents on z/OS related issues
• z/OS performance monitoring and reporting
• Capable of planning and supporting Disaster recovery exercises
• Performance tuning & Development of operational procedures
• Experience with system indicators (logs, dumps, error) logs for pro-active management of system problems
• Installation and maintenance of ISV products (For z/OS)
• Ability to work with Developers in fixing issues
• Extremely familiar with IBM z/OS Upgrade
• Experience in Coordinating with Vendor to complete the upgrades
• Planning, installation, customization of z/Linux and guest operating system
• Ability to perform dump and restore of system data.
• Responsible for tolerating PTF maintenance for ISV products
• Access management - onboarding and access provisioning

Key Responsibilities

• Incident Management / Problem Management by performing problem analysis and resolution implementation
• Support maintenance release and major OS upgrades.
• Process client requests for system software modifications
• Review system indicators (logs, dumps, error) logs for pro-active management of system problems
• Work with operations to monitor, maintain and IPL systems to improve consistency and availability
• Monitor / Tune system performance and work with performance engineering and capacity teams
• Ensure availability and performance objectives, as required by clients and management, are maintained for operating systems and for system software components
• Implement appropriate tools and processes to automate repeated tasks
• Manage various license codes for infrastructure software.
• Capable of planning and supporting Disaster recovery exercises
• Performance tuning & Development of operational procedures
• Implement changes as needed to support other towers and day-to-day operations.
• Work with IBM and other Independent Software Vendors on a regular basis
• Provide regular management reports / analysis to senior management team regarding Incidents, Changes and requests